Chilean Pastel de Jaiba (Baked Crabmeat)

Name: Chilean Pastel de Jaiba (Baked Crabmeat)
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Cuisine: American, Latin American
Ingredients: 1 pound fresh crabmeat (or canned, drained); 1 small onion, finely chopped; 2 tablespoons butter; 1 cup heavy cream; 1/2 cup mayonnaise; 1 cup grated cheese (Chilean cheese or a blend of mozzarella and Parmesan); 1/2 teaspoon paprika; 1 tablespoon fresh parsley, chopped (or cilantro); Salt and pepper to taste; 1 cup breadcrumbs (preferably panko); 1/4 cup grated cheese (for sprinkling on top); 2 tablespoons olive oil; 1 teaspoon dried oregano